Yayın: Analytical information on the asphaltenes from a few standard characterization techniques
Tarih
Kurum Yazarları
Peksöz, Ahmet
Akay, Sertan Kemal
Kaya, Yunus
Ovalıoǧlu, Hüseyin
Kaynak, Gökay
Yalçıner, Aytaç
Yazarlar
Danışman
Dil
Türü
Yayıncı:
Taylor & Francis
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Özet
The asphaltene has been obtained from asphalt cement with penetration grade 60, which is extracted from crude Libya petroleum. The elemental composition and some structural properties of the asphaltene samples are determined by various methods, such as SEM, infrared spectroscopy, and X-ray analysis. Some experiments are performed on (1)H dynamic nuclear polarization (DNP) in a number of asphaltene suspensions in organic solvents. The frequency dependence of the DNP enhancement under conditions of weak EPR saturation in a low magnetic field is obtained and interpreted as the EPR line shape of some free radicals present in the samples.
Açıklama
Kaynak:
Anahtar Kelimeler:
Konusu
Energy & fuels, Engineering, Environmental sciences & ecology, Asphaltene, Dynamic nuclear polarization, Electron double-resonance, Spectroscopy, Suspensions, Crude oil, Free radicals, Infrared spectroscopy, Magnetic fields, Organic solvents, Spin polarization, Structural properties, Asphalt cements, Characterization techniques, Dynamic nuclear polarization, Elemental compositions, EPR, Frequency dependence, FTIR, Line shape, Low magnetic fields, SEM, Asphaltenes
Alıntı
Peksöz, A. vd. (2011). "Analytical information on the asphaltenes from a few standard characterization techniques". Energy Sources, Part A-Recovery, Utilization and Environmental Effects, 33(15), 1474-1481.